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Lines in LCD tv moving from bottom to top when connectin RCA

The problem is this, if i connect an AV cable (rca) directly from the cable tv box to the tv (video 2) lines can be seen and is very annoying, but if i connect only the coaxial cable that comes from the outside om my home directly to the tv there's no line.


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  • goldenboy_17 Jan 14, 2009

    You mean to use the adapter in the tv power cord or the cable tv box cord?

  • goldenboy_17 Jan 17, 2009

    It helped a lot, thank you very much for the help. It can be seen a little but no annoying as before.

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Hey there,

There may be a ground loop in your electrical wiring. Try connecting a 3 prong to 2 prong AC adapter between the power cord and the electrical wall outlet. You can find one in any hardware store for around one dollar. This will lift the ground from the TV. If your lines go away you may have an issue with your electrical wiring in the house or on an internal part on one of the components. The least expensive fix is to leave the adapter in place. I hope this helps.

Posted on Jan 14, 2009

  • timon0308 Jan 17, 2009

    On the TV power cord

  • timon0308 Apr 14, 2009

    Glad to hear that it helped you

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With set up box audio in to tv causes high pitch sound


I am assuming this should read 'Set top box'. What kind of cable are you using?

Usually the set top box connects via a SCART lead but yours may be HDMI if it is a very new set top box.

If you are using RCA plugs, you may have cross connected the wrong cables. The RCA cables should be colour-coded. RED and WHITE are for audio, Yellow is for video.

Best advice is to switch it all off, remove all the cables you attached, and start again. The instruction manual/user guide usually has an illustration to help you identify what your set up looks like - there are usually several examples.

If the cables you need did not come with the set top box, you will need to purchase them.

When you are connecting audio leads, you should use the 'audio out' on the set top box and the 'audio in' on your TV set.

It would help to know the EXACT model number of LG screen you have and the make and EXACT model number of the set top box.

Good luck.

Mar 07, 2015 | LG 42LC2D 42 in. LCD HDTV

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New RCA TV just out of the box, show's nothing but green diagonal lines.


Recommend contacting the seller and tell them you are bringing it back and why.

Mar 05, 2015 | RCA L42FHD37 42 in. LCD HDTV

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I set up teac HDB840 to tv- via coxial cable from wall to set top box, then rca cables output of set top box , then to input to tv.-tried av button on tv showing av1 av2 and av3 but still no picture only...


Hi, Your set top box (PVR) is running on channel 3 or 4. Go to menu and sellect a source TV, DVD
Note: Do not connect more than 1 set of cables to tv or you may damage something.
TV > box connect RCA cable or HDMI not both.
Set top box > connect RCA or HDMI Not both.
audio devices > TV connect RCA or HDMI not both.
Good luck.

Jun 18, 2011 | Flat Panel Televisions

1 Answer

How do you connect AKAI model # PDP4290 to cable ?


You will need a cable box/set-top box with this TV. Contact your cable TV provider for this.
It does not have a direct RF connection, only AV connections.
For Cable TV support you can use
  • Composite video (single RCA connector)
  • SVideo (round 4 pin connector)
  • Component Connectors (3 RCA connecters red/green/blu)

Component will give you the highest quality signal (as long has the cable box supports this connection) You will also need to connect the Audio connectors (red/white RCA) from the cable box to the TV as well.

The full PDF manual for your TV can be found here: http://www.managemylife.com/mmh/lis_pdf/OWNM/L0502572.pdf

I hope this helps,
Magoo

Mar 11, 2011 | Flat Panel Televisions

2 Answers

Hello I received a lg flatron plasma MZ42PZ14 and just wanted to connect the tv cable to the tv, but i can't find any coax on the tv. what can i do?


This kind of tv u must have cable or satalite tvs pay broadcasting signal cable,so u have a box .Tv have HDMI ports or RCA AV component cable input?The incomming broadcating tv signal go to the cable or satalite boxes.Than u use a HDMI cable or RCA AV component cable go through those boxes than to ur tv HDMI input ports or RCA AV component cable input holes.

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How do you connect the cable to the tv? I have a dvr box but dont know where the connection on the tv is?


Cable from box to t.v , from antenna to box . If you have a hdmi cable plug into the back of the box, and plug into the hdmi input on the back or side of your t.v

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1 Answer

I have recently gotten a Sharp AQUOS Quattron (LC52LE810UN). I have a rogers cable box with a RCA input, but the tv doesnt not have an direct RCA input. It has a input for an audio cable with a component...


Your TV is a High-Def TV (HDTV) therefore you need a Rogers cable box and service capable of High-Definition in order to get the HD resolution you paid for with the HDTV. HD video requires HDMI or component video cable connections. Standard RCA AV (yellow, white, red) will not show HD video.

Having said that, you may want to hookup a game or VCR to the TV and therefore you will need to get a cable known as an AV miniplug. It has RCA (3) on one end for the VCR for example and on the other end is a Mini-plug to connect to the HDTV (Sharp). This cable is like the ones used on camcorders such as Sony. Make sure you get a cable with the right ends as depicted in your manual on page 14.

You'll have to Google online for a supplier. Sparco.com had these cables but are out of stock currently.

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1 Answer

Trying to connect vcr do i connect it to cable box or to back of tv. tv is on the wall thats why I,m asking


If u plan to just to watches video only,than just used a RCA AV component RYW connections hook directly to the LCD tv is find.But if plan to record shows and things to the VCR tapes,than the VCR unit must hook through to the cable box.

Nov 22, 2010 | Flat Panel Televisions

1 Answer

I just reconnected my haier television to the cable box and now the picture is in black and white not in color


U are using a AV RCA cable for the connections?Ur AV RCA cable connections all matches up like RED to RED,YELLOW to YELLOW and WHITE TO WHITE?Tried another AV RCA cable?Might even tries a HDMI cable for the connections?U tried all these still getting the same result no colors,just black and white.Than ur Tuner board is defective,must be replaced to solved this problems.

Apr 24, 2010 | Haier HLH406BB 40 in. LCD HDTV

1 Answer

No service


  • Make sure that you have connected the cable box properly to the TV.
  • Use the audio and video OUT from the box to the TV IN.
  • Select the correct input on the TV.
  • Connect it using any of the following: A HDMI cable (1 cable for both audio and video), Component Cables (3 RCA's red, green, blue) + RCA audio cables (1 for mono or 2 for stereo), S-Video + RCA audio cables (1 for mono or 2 for stereo), or AV cables - 1 RCA for video (usually marked yellow) + RCA audio cables (1 for mono or 2 for stereo).
  • Consult your TV's owner's manual for detailed instructions or ask me for more information.
Hope this helps. :)

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